Hi
I am using Ubuntu 16.04 STL and installed OIS as a dependency for Ogre.OIS installed and the lib generated in the path:/usr/local/lib
Also, I installed ogre without any problems. my main problem is when trying to build my application gives me the following errors :

Failed to find OIS on your system.
Graphical Client is not built as some dependencies are not met.

Here is a part of CMakeList file:
##############
# OGRE 1.9.x #
##############

# Check for dependencies and define target if all libraries are available.
if(CLIENT_DEPENDENCIES_NOT_MET)
message("Graphical Client is not build as some dependencies are not met.")
else(CLIENT_DEPENDENCIES_NOT_MET)
#################################################################################